Astra Spacecraft Engine
Flight-proven Hall-effect electric propulsion system for small satellites, running on xenon or krypton.
Fielded
Startup · United States
Astra
HQ Alameda, CAFounded 201651-200 employees
Astra is a private space company with Rocket 4.0 offering responsive mobile launch services and flight-proven satellite engines for affordable orbital access.
- Part ofApogee Parent, Inc.
StartupFielded
Sep 18, 2026NewsAstra is Poised to Rewrite the 'Commercial' Rocket Equation with its 2027 Rocket 4 LaunchThe DebriefAug 14, 2026NewsUS rocket company Astra Space seeks to raise $250 million in comeback bidReutersApr 24, 2026NewsAstra Targets Golden Dome With Small Rockets, Says CEO Chris KempPayload
- Sep 18, 2026NewsThe DebriefAstra is Poised to Rewrite the 'Commercial' Rocket Equation with its 2027 Rocket 4 Launch
- Aug 14, 2026NewsReutersUS rocket company Astra Space seeks to raise $250 million in comeback bid
- Apr 24, 2026NewsPayloadAstra Targets Golden Dome With Small Rockets, Says CEO Chris Kemp
Funding5 rounds · ~$565M
- Equity raised
- ~$565M
- Debt, secondaries & grants
- $28.6M
- Latest
- $2.7MDebt · Nov 24, 2023
- Last valuation
- $2.10B?Basis not stated · SPAC · Feb 2, 2021
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Nov 24, 2023 | Debt | $2.7M | — | — | ACME Capital | Reported |
| Nov 6, 2023 | Debt | $13.4M | — | ACME Capital | — | Reported |
| Aug 4, 2023 | Debt | $12.5M | — | — | — | Confirmed |
| Feb 2, 2021 | SPAC | ~$500M | $2.10B? | BlackRock | — | Reported |
| 2024 | Undisclosed | ~$65.0M | — | — | — | Reported |
- DebtWith ACME Capital$2.7MNov 24, 2023
- DebtLed by ACME Capital$13.4MNov 6, 2023
- DebtConfirmed$12.5MAug 4, 2023
- ~$500MFeb 2, 2021
- Undisclosed~$65.0M2024
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
Systems2
Rocket 4.0
Astra's launch vehicle designed for responsive, high‑cadence access to orbit.
Maturity not rated
Newest unveiled first. Open a system for its milestone timeline, components and sources.
Supply Chain1 facility
Facilities1
| Facility | Kind | Location | Status | Confidence |
|---|---|---|---|---|
| Astra Headquarters and Rocket Factory | Headquarters | Alameda, CA, United States | Operating · 2019 | Confirmed |
- Astra Headquarters and Rocket FactoryHeadquarters · Alameda, CA, United StatesOperating · 2019Confirmed
People3
- Adam London · LinkedIn ↗
Founder, CTO
- Chris Kemp · LinkedIn ↗
Founder, Chairman and CEO
- Axel Martinez · LinkedIn ↗
CFO
Hiring Observations10 observed listings
2026 Winter/Spring Intern (Dec-Apr) ↗
Alameda, CA · Other
Open when checked · Rippling public employer job board
Checked Oct 13, 2026
Alameda, CA · Engineering
Open when checked · Rippling public employer job board
Checked Oct 13, 2026
Checked Oct 13, 2026
Equipment Maintenance Technician ↗
Alameda, CA · Other
Open when checked · Rippling public employer job board
Checked Oct 13, 2026
Facilities Electrician & Maintenance Specialist ↗
Alameda, CA · Other
Open when checked · Rippling public employer job board
Checked Oct 13, 2026
General Application - New Grads ↗
Alameda, CA · Other
Open when checked · Rippling public employer job board
Checked Oct 13, 2026
Checked Oct 13, 2026
Checked Oct 13, 2026
Checked Oct 13, 2026
Lead Propulsion Systems Development Engineer ↗
Alameda, CA · Engineering
Open when checked · Rippling public employer job board
Checked Oct 13, 2026
A sample of observed listings, not a total vacancy count. Availability may have changed since collection. Categories are inferred from job titles.
Company Metrics
Employee-profile counts reflect LinkedIn profiles associated with the company, not verified headcount. One observation establishes a baseline; it does not establish growth.
Sources17
Show all 17 sources and supporting evidence
Profile4
- 1
Reuters · Aug 14, 2026 · Supports Organization · status
“Kemp scrapped the company's original rocket after only two successful launches out of six attempts and is now betting on Rocket 4”
- 2
Astra · Jul 18, 2024 · Supports Organization · legal name, Organization · parent
“About Astra Space, Inc.”
- 3
Astra · Supports Organization · description, Organization · name, Organization · website
“Astra is a private space company with Rocket 4.0 offering responsive mobile launch services and flight-proven satellite engines for affordable orbital access.”
- 4
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "USA", "hq_iso2": "US", "id": "3b851834-8b3a-42ac-95a0-fc00ed85d7ef"}”
Systems4
- 5
Astra · Supports System, System · maturity
“Astra's Rocket 4.0 is engineered for the demands of the modern space economy.”
- 6
Astra · Supports Facility, Organization · status, System, System · first fielded year, System · maturity
“15 acre campus in Alameda, California with our new 250,000 square foot headquarters and rocket factory”
- 7
Astra · Supports System
“## Rocket 4.0 ### 62 ft ### HEIGHT 18.9 m ### **72 in** ### DIAMETER 1.8 m ### **2** ### STAGES ### ~66,000 lb ### LIFTOFF MASS ### ~6,500 lbf ### UPPER STAGE THRUST ### ~80,000 lbf ### FIRST STAGE THRUST ### **LOX + RP-1** ### PROPELLANTS”
- 8
Astra · Supports System
“Xenon and Krypton electric propulsion system with a magnetically shielded thruster and best-in-class performance for spacecraft with less than 1 kW of power.”
Funding5
- 9
TechCrunch · Nov 7, 2023 · Supports Funding round · amount
“closed $13.4 million in initial debt financing with JMCM Holdings LLC and Sherpa Venture Funds II”
- 10
MarketScreener (Astra press release) · Aug 4, 2023 · Supports Funding round · amount
“closed a registered issuance of $12.5 million aggregate principal amount of senior secured notes”
- 11NewsRocket builder Astra to go public via SPAC at $2.1 billion valuation after reaching space last month
CNBC · Feb 2, 2021 · Supports Funding round · amount, Funding round · post money valuation usd
“The deal is expected to provide Astra with up to $500 million in cash proceeds, including $200 million in a PIPE round led by BlackRock.”
- 12
Payload · Supports Funding round · amount
“Astra secured an additional $2.7M from investors.”
- 13
Payload · Supports Funding round · amount
“raised $65M to take the company private in a $11.25M transaction that closed this spring”
Supply chain1
- 14CompanyContact Us | Astra Space
Astra · Supports Facility
“1900 Skyhawk Street Alameda, California 94501”
People1
- 15
Crunchbase · Supports Organization · employee range, Organization · hq city, Organization · linkedin url, Organization · x url, Role
“employee_range: 51-200 (profile: 51-100)”
Other2
- 16
- 17DatabaseAstra - LinkedIn company profile
LinkedIn · Supports Organization · employee range, Organization · founded year, Organization · hq city, Organization · linkedin url, Organization · ownership, Organization metric · employees in linkedin, Organization metric · followers
“employee_range: 51-200 (profile: 51-200 employees)”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.